Book Image

Dancing with Python

By : Robert S. Sutor
Book Image

Dancing with Python

By: Robert S. Sutor

Overview of this book

Dancing with Python helps you learn Python and quantum computing in a practical way. It will help you explore how to work with numbers, strings, collections, iterators, and files. The book goes beyond functions and classes and teaches you to use Python and Qiskit to create gates and circuits for classical and quantum computing. Learn how quantum extends traditional techniques using the Grover Search Algorithm and the code that implements it. Dive into some advanced and widely used applications of Python and revisit strings with more sophisticated tools, such as regular expressions and basic natural language processing (NLP). The final chapters introduce you to data analysis, visualizations, and supervised and unsupervised machine learning. By the end of the book, you will be proficient in programming the latest and most powerful quantum computers, the Pythonic way.
Table of Contents (29 chapters)
Part I: Getting to Know Python
PART II: Algorithms and Circuits
PART III: Advanced Features and Libraries
Other Books You May Enjoy
Appendix C: The Complete UniPoly Class
Appendix D: The Complete Guitar Class Hierarchy
Appendix F: Production Notes

13.1 Function plots

This section introduces matplotlib and develops the techniques to create the plots in Figure 13.1.

Plots of the sine and inverse sine functions
Figure 13.1: Plots of the sine and inverse sine functions

We use the matplotlib.pyplot module, which we always import as plt.

13.1.1 Plotting a point

In its most basic form, the plot function takes a point’s x coordinate, y coordinate, and some keyword arguments that state how to display the point.

import matplotlib.pyplot as plt

the_plot = plt.plot(1, 0.5, color="black", marker='o')
<Figure size 432x288 with 1 Axes>

The show function displays the plot.
A matplotlib plot with one point

The color keyword argument sets the color of the point, and you can use "black", "blue", "cyan", "green", "magenta", "red", "white", and "yellow&quot...